ARORA K R. (2020). SURVEYING VOLUME II. STANDARD BOOK HOUSE.
Lua i Stíl Chicago (17ú heag.)ARORA K R. SURVEYING VOLUME II. DELHI: STANDARD BOOK HOUSE, 2020.
Lua MLA (9ú heag.)ARORA K R. SURVEYING VOLUME II. STANDARD BOOK HOUSE, 2020.
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